التفاصيل البيبلوغرافية
| العنوان: |
Pulse wave velocity: intersecting tangents versus second derivative on same pressure wave recordings. |
| المؤلفون: |
Tairi, Amira, Obeid, Hasan, Fortier, Catherine, Paré, Mathilde, Côté, Nadège, Philibert, Emy, Garneau, Charles-Antoine, Goupil, Rémi, Agharazii, Mohsen |
| المصدر: |
Artery Research; 2023 Supplement, Vol. 29 Issue 1, pS34-S34, 1/2p |
| مصطلحات موضوعية: |
PULSE wave analysis, CAROTID artery |
| مستخلص: |
Background: Aortic stiffness is assessed by determination of pulse wave velocity using pulse transit time and the distance between carotid and femoral arteries. Transit time is obtained by using intersecting tangents algorithm or the point of maximal upstroke during systole (2nd derivative). Millasseau et al. [1] have proposed a formula for converting transit time between methods using SphygmoCor (intersecting tangents) and the Complior SP (2nd derivative). The objective of the present study is to compare the two methods using the same pressure waveforms obtained by the newer generation of Complior and using Millasseau's formula. Methods: In a cross-sectional study of heterogeneous group of subjects, aortic stiffness was assessed by the Complior Analyse device using 2nd derivative. The pulse waveforms were extracted and used for analysis by custom MATLAB algorithm for intersecting tangents, and the results were then compared to Millasseau's formula. Results: The preliminary results of the first 44 patients (men: 50%; mean age: 47 ± 18 years) show that Millasseau's formula underestimates the transit times values by about 6% in comparison with the transit times obtained by the intersecting tangents method using MATLAB software (63 ± 23 ms vs 67 ± 21 ms; P < 0.001). This results in an overestimation of the pulse wave velocities values by about 10% (11.1 ± 5.2 m/s vs 10.2 ± 3.6 m/s; P < 0.001). Conclusions: Based on these preliminary results, the values of pulse wave velocities obtained with Millasseau's formula overestimate values as compared to the values obtained by intersecting tangents method. Therefore, there is a need for a better conversion formula. [ABSTRACT FROM AUTHOR] |
|
Copyright of Artery Research is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Supplemental Index |
Full Text Finder